Praxis Biology Quesitons | easysemester.com

easysemester.com

Your praxis Biology test prep center

Which of the following is a technology type that is used by scientists to improve human existence?

Which of the following is a technology type that is used by scientists to improve human existence? a) Using viral genes to infect plants with beneficial modifications. b) Using microorganisms to detoxify human waste. c) Using artificial bovine growth hormone to increase milk production. d) All of the above. Explanation: All of the technological processes that are mentioned are c...

Who is Charles Darwin?

Darwin is the first of the evolutionary biologists, the originator of the concept of natural selection. His principal works, The Origin of Species by Means of Natural Selection (1859) and The Descent of Man (1871) marked a new epoch.

What is Visible light wavelength?

Visible light wavelengths are between 400 and 700 nanometers. Visible light waves are the only electromagnetic waves we can see. We see these waves as the colors of the rainbow. Each color has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength. When all the waves are seen together, they make white light. When white light shines through a prism, the...

An anticodon is made primarily of what?

An anticodon is made primarily ofAn anticodon is the three nucleotide sequence on transfer RNA (tRNA) that complements mRNA. It is used to translate mRNA into protein. what? Definition: An anticodon is a unit made up of three nucleotides which play an important role in various DNA cycles, including RNA translation . An RNA strand has an anticodon. Is it tRNA or mRNA? Roles of 3 types of RNA...

A diploid organism has the genotype AaBbCc for three loci, eahc of which is located on a differnt chromosome.a normal gamete produced by this organism could have which of the following genotypes?

a) AbC answer b) AB C) AaB d) ACc

a bird in a cage jumps to its perch to be fed each dday when it is presented with food. For a period of time,

a bird in a cage jumps to its perch to be fed each dday when it is presented with food. For a period of time, the cage is tapped before the bird food is given. Eventuall the bird jumps to the perch when the cage is tapped, wherter food is presented or not. the birds behaviour can be classified as which of the following? a) habituation b) train and error(oerant conditioning) c) imprinting d...

144. Which of the following are functions of human luteinizing hormone (LH) in females?

144. Which of the following are functions of human luteinizing hormone (LH) in females? I. Ovarian follicle maturation II. Triggering of ovulation III. Stimulation of oxytocin production (A) I only (B) II only (C) I and II only (D) II and III only

142. Calcium functions in all of the following ways in animals EXCEPT as (A) a component in some arthropod skeletons (B) an intracellular messenger (C) a cofactor in the coagulation cascade (D) a carrier for certain plasma proteins

143. Using DNA technology, researches are engineering nitrogen-fixing bacteria that can live in the tissues of nitrogen-demanding plants, which would reduce the use of chemical fertilizers. Which of the following crops would most likely benefit from this kind of research?

Calcium functions in all of the following ways in animals EXCEPT as

Calcium functions in all of the following ways in animals EXCEPT as (A) a component in some arthropod skeletons (B) an intracellular messenger (C) a cofactor in the coagulation cascade (D) a carrier for certain plasma proteins

Praxis Biology Question:

Posted By: Admin on January 6, 2010 in Actual Praxis Biology Question - Comments: No Comments »

141. In an experiment, cells are incubated in a nutrient media containing radioactive ³⁵S-methionine for 10 minutes. The media is then removed and replaced with nutrient media containing normal methionine. Periodically, a sample of the cells is removed and the cells are homogenized, centrifuged and organelles isolated. For a protein that will eventually be exported form the cell, which of the following is the correct order in which radioactivity will appear in the organelles of the cells?

(A) Nucleus → rough endoplasmic reticulum → Golgi apparatus → transport vesicles

(B) Cytoplasmic ribosomes → plasma membrane → transport vesicles

(D) Smooth endoplasmic reticulum → cytoplasmic ribosomes → plasma membrane

142. Calcium functions in all of the following ways in animals EXCEPT as

(A) a component in some arthropod skeletons

(B) an intracellular messenger

(D) a carrier for certain plasma proteins

(A) Soybeans

(B) Alfalfa

(D) Corn

144. Which of the following are functions of human luteinizing hormone (LH) in females?

Ovarian follicle maturation
Triggering of ovulation
Stimulation of oxytocin production

(A) I only

(B) II only

(D) II and III only

145. Which of the following statements about sea urchin development is correct?

(A) The blastopore will become the mouth

(B) Endoderm will form the future digestive surface

(D) The blasocoel will form the coelom, or body cavity

SEARCH: ENTER KEYWORDS

Follow Us on Twitter

Tags

. The changes in turgor pressure that cause the stomata of leaves to open and close results primarily from the reversible uptake and loss of which of the following ions by the guard cells? 142. Calcium functions in all of the following ways in animals EXCEPT as (A) a component in some arthropod skeletons (B) an intracellular messenger (C) a cofactor in the coagulation cascade (D) a carr 143. Using DNA technology 144. Which of the following are functions of human luteinizing hormone (LH) in females? and Enzymes An increase in the amount of thyroxine causes a decrease in the production of thyroid-stimulating hormone. This biological process is called ATP Cells - Structure and Function Cell Types in the Plant Body classical conditioning density-independent factor Dicots Energy Hardy-Weinberg equilibrium in a population may b e disturbed by all of the following EXCEPT Lectures 2 & 3: Chemistry and the Building Blocks of Life Methanol is the simplest alcohol in terms of structure and is shown above. Which of the following is a structural isomer of methanol? Monocots n anticodon is made primarily of what? Nitrogen demanding plants: Corn Nursing review or body cavity Organization of Plants and Animals - Cells Organs Organ Systems photosynthesis Plant Structure and Function plasmids polymerase chain reaction (PCR) technique? Praxis Biology Quesitons RAW SCORE: WHERE YOU COMPARE researches are engineering nitrogen-fixing bacteria that can live in the tissues of nitrogen-demanding plants reversible uptake and loss Science as a Process Scoring Your Practice Test The atomic number of chlorine is 17. Chloride ions are found in many biological tissues and fluids. How many electrons does a chloride ion have? The Plasma Membrane Tissues Transport in Plants What is Science? * Science – the study of the natural world * Science – a frequently misunderstood process by which new knowledge is obtained Which antiboby type is responsible for allergic reactions or Type I hypersensitivity? Which of the following are functions of human luteinizing hormone (LH) in females? Which of the following crops would most likely benefit from this kind of research? Which of the following statements about sea urchin development is correct? (A) The blastopore will become the mouth (B) Endoderm will form the future digestive surface (C) Ectoderm will form the outer which would reduce the use of chemical fertilizers. Which of the following crops would most likely benefit from this kind of research? Your Study Plan Sheet

Praxis Biology Question:

SEARCH: ENTER KEYWORDS

Advertisement

Category

Follow Us on Twitter

Blogroll

Recent Comments

Tags

Pages

Archives

Categories